Help Contact For teachers and institutes

Mock Tests Classes

StemPy Lab

Learn. Solve. Code the solutions. Test yourself.

Live examsFree mock exams, timed and rankedEveryone starts together, and your score and rank come the moment it ends.See the exams →

Learn

Physics
Chemistry
Mathematics
Biology
Python Programming
Statistics & Data Science
Classes
Groups

Practice

Problems
Quizzes
Mock Tests
Prepare for an Exam
Question Sets
Exams
Certificates
Python Labs
AI Practice Generator
Student-Created Tests

Community

Discussions
Resources
Notes
Blog

Account

Log in

© 2026 senLearn. All rights reserved.Help About Contact Privacy Policy Terms of Use Refund Policy

In a phasor diagram the current phasor is drawn 90°… | StemPy Lab

Quizzes
In a phasor diagram the current phasor is drawn 90° behind the voltage phasor, measured against the sense of rotation. Which part is in the circuit?

PhysicsMediumHigh School (11–12)Electricity & Magnetism › Alternating Current Electricity & Magnetism › Current Electricity Board Exam A-Level IB

Created by StemPy Lab

In a phasor diagram the current phasor is drawn $90^\circ$ behind the voltage phasor, measured against the sense of rotation. Which part is in the circuit?

← All Quizzes

← Two AC sources of equal frequency are in one series loop. The first has a peak value of 21 V. The second has a peak value of 28 V and is a quarter of a cycle ahead. What is the peak value of the voltage across both?Assertion: a pure capacitor lets a steady direct current flow for ever. Reason: the reactance of a capacitor, XC = 1/(2π f C), becomes infinite when the frequency is zero. →

More onElectricity & Magnetism › Alternating Current Electricity & Magnetism › Current Electricity

Discussion (0)

Log in to join the discussion.

Loading…

More questions on this topic

In an LC circuit the largest charge on the capacitor is 5 µC and the angular frequency of the…Medium
The charge on the capacitor of an LC circuit oscillates with a period of 12 ms. The capacitor…Medium
The charge on the capacitor of an LC circuit is half of its largest value. What fraction of the…Medium
In an LC circuit the inductance is doubled and the capacitance is halved. What happens to the…Medium
A line of resistance 2.0 Ω carries 10 kW at 2.0 kV. The power factor is 1. What is the power lost…Medium

All questions on this topic →

Problems on this topic

An LC circuit has L = 0.50 H, C = 20 µF and a resistance of 2.0 Ω…Hard
A capacitor of 12 µF is charged to 30 V…Medium
A coil of 45 mH is joined to a capacitor of 0.80 µF…Easy
A line has a total resistance of 12 Ω. At the sending end the voltage is 33 kV and the current is…Hard

All problems on this topic →